<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <div id="app">
    <div>{{ name}}</div>
    <div>{{ name.toUpperCase()}}</div>
    <div>{{ age>18?'成年':'未成年'}}</div>
    <div>{{ desc.hobby}}</div>
  </div>

  <script src="./vue.js"></script>
  <script>
    const app = new Vue({
      el:'#app',
      data:{
        name:'tony',
        age:20,
        hobby:'basketball'
      }
    })

  </script>

</body>

</html>